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Abstract

Phaseolus vulgaris and Zea mays seedlings and plants were cultured on quarter-strength Hoagland nutrient medium with or without increasing concentrations of Na^SO^. Sodium sulphate increased the levels of reducing sugars whereas sucrose and polysaccharides decreased in the treated seedlings, whole plants and leaves."<-ketoglularic and certain carboxylic acids of the Krebs cycle increased in all seedlings and plants in response to the various salt concentrations used, with the exception of puruvate,o(-ketoglutarate and succinate which decreased in the salinized Phaseolus vulgaris seedlings. The present results with Na;SO^ are discussed in relation to the effect of salinity in other plant species and appear to be broadly in agreement with those other studies.